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Note 11 - Income Taxes and Deferred Tax Asset/Liability (Detail) - Summary reconciliation reported amount of income tax expense to the amount of income tax expense under federal statutory tax rates: (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Tax expense (benefit) at the U.S. federal statutory rate (in Dollars) | $ 5,997 | $ (18,101) | $ 12,773
Tax expense (benefit) at the U.S. federal statutory rate | 35.00% | 35.00% | 35.00%
State tax based on income, net of refunds and federal benefits (in Dollars) | (58) | (573) | 879
State tax based on income, net of refunds and federal benefits | (0.30%) | 1.10% | 2.40%
Taxes on subsidiaries’ and joint ventures’ earnings allocated to noncontrolling interests owners (in Dollars) | (5,938) | (444) | (2,498)
Taxes on subsidiaries’ and joint ventures’ earnings allocated to noncontrolling interests owners | (34.70%) | 0.90% | (6.80%)
Tax benefits of Domestic Production Activities Deduction (in Dollars) | (84) | (202) | (500)
Tax benefits of Domestic Production Activities Deduction | (0.50%) | 0.40% | (1.40%)
Impairment associated with goodwill that is not amortizable for tax (in Dollars) |  | 2,603 |
Impairment associated with goodwill that is not amortizable for tax |  | (5.00%) |
Non-taxable interest income (in Dollars) | (529) | (376) | (494)
Non-taxable interest income | (3.10%) | 0.70% | (1.40%)
Other permanent differences (in Dollars) | 33 | 81 | 110
Other permanent differences | 0.20% | (0.20%) | 0.30%
Income tax expense (benefit) (in Dollars) | $ (579) | $ (17,012) | $ 10,270
Income tax expense (benefit) | (3.40%) | 32.90% | 28.10%

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